ArticleDevelopmental dynamics : an official publication of the American Association of Anatomists2018
Evolution of caudal fin ray development and caudal fin hypural diastema complex in spotted gar, teleosts, and other neopterygian fishes.
Article in Developmental dynamics : an official publication of the American Association of Anatomists, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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14 citing papers in PubMed, 36 citations in OpenAlex.
- An essential role for actinotrichia in zebrafish fin patterning and courtship behavior.Development (Cambridge, England) · 2026Article
- Caudal fin shape imprinted during late zebrafish embryogenesis is re-patterned by the Sonic hedgehog pathway.PLoS biology · 2025Article
- Identification of sex-biased MiRNA markers informative of heat-past events.BMC genomics · 2025Article
- Anterior-posterior constraint on Hedgehog signaling by hhip in teleost fin elaboration.Development (Cambridge, England) · 2024Article
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- Validity of Xiphophorus fish as models for human disease.Disease models & mechanisms · 2024Review
- Regeneration of the dermal skeleton and wound epidermis formation depend on BMP signaling in the caudal fin of platyfish.Frontiers in cell and developmental biology · 2023Article
- Platyfish bypass the constraint of the caudal fin ventral identity in teleosts.Developmental dynamics : an official publication of the American Association of Anatomists · 2022Article
- Coordinated patterning of zebrafish caudal fin symmetry by a central and two peripheral organizers.Developmental dynamics : an official publication of the American Association of Anatomists · 2022Article
- Morphological characters in light of new molecular phylogenies: the caudal-fin skeleton of Ovalentaria.Royal Society open science · 2022Article
- Heads and tails: The notochord develops differently in the cranium and caudal fin of Atlantic Salmon (Salmo salar, L.).Anatomical record (Hoboken, N.J. : 2007) · 2021Article
- Function of Circular RNAs in Fish and Their Potential Application as Biomarkers.International journal of molecular sciences · 2021Review
- Gene expression profiling suggests differences in molecular mechanisms of fin elongation between cichlid species.Scientific reports · 2019Article
- Skeletal development in the heterocercal caudal fin of spotted gar (lepisosteus oculatus) and other lepisosteiformes.Developmental dynamics : an official publication of the American Association of Anatomists · 2018Article
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3 authors at 1 institution in 1 country.
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Abstract
backgroundThe caudal fin of actinopterygians transitioned from a heterocercal dorsoventrally asymmetrical fin to a homocercal externally symmetrical fin in teleosts through poorly understood evolutionary developmental mechanisms. We studied the caudal skeleton of major living actinopterygian lineages, including polypteriformes, acipenseriformes, Holostei (gars and bowfin), and teleosts, compared with reports of extinct neopterygians and basal teleosteans. We focused on the hypural diastema complex, which includes (1) a gap between hypurals 2 and 3, that (2) separates two plates of connective tissue at (3) the branching of caudal vasculature; these features had been considered as a shared, derived trait of teleosts, a synapomorphy.
resultsThese studies revealed that gars and teleosts share all three features of the hypural diastema complex. Absence of a complex with these features from bowfin, fossil Holostei, and stem Teleostei argues in favor of repetitive, independent emergence in several neopterygian and basal Teleostei lineages, or less likely, many independent losses. We further observed that, in gars and teleosts, the earliest developing lepidotrichia align with the horizontal adult body axis, thus participating in external symmetry.
conclusionsThese results suggest that the hypural diastema complex in teleosts and gars represents a homoplasy among neopterygians and that it emerged repeatedly by parallel evolution due to shared inherited underlying genetic and developmental programs (latent homology). Because the hypural diastema complex exists in gars with heterocercal tails, this complex is independent of homocercality. Developmental Dynamics 247:832-853, 2018. © 2018 Wiley Periodicals, Inc.
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